#423E89#423E89

#423E89 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.0% C 0.121 H 282.0°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#423E89
RGB	rgb(66, 62, 137)
HSL	hsl(243, 38%, 39%)
HSV	hsv(243, 55%, 54%)
CMYK	cmyk(51.8%, 54.7%, 0%, 46.3%)
CIE-LAB	lab(30.42, 23.35, -41.53)
CIE-LCH	lch(30.42, 47.65, 299.35°)
OKLab	oklab(40.96% 0.0253 -0.1185)
OKLCH	oklch(40.96% 0.121 282)
XYZ	xyz(8.4834, 6.4092, 24.4521)
Luminance	0.0641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423E89 #85893E

analogous

#3E6089 #423E89 #683E89

triadic

#423E89 #89423E #3E8942

tetradic

#423E89 #893E60 #85893E #3E8968

square

#423E89 #893E60 #85893E #3E8968

split-complementary

#423E89 #89683E #60893E

monochromatic

#191835 #2E2B5F #423E89 #5853B1 #817DC4

Accessibility & contrast

On white

9.20

#423E89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#423E89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423E89

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423E89	#FFFFFF	#000000	##FFFFFF
##423E89	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154A8C

Deuteranopia (green-blind)

#0E4587

Tritanopia (blue-blind)

#274F5D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #423e89;
/* rgb */ color: rgb(66, 62, 137);
/* oklch */ color: oklch(41.0% 0.121 282.0);

Tailwind

colors: {
  custom: {
    50: '#7c73ac',
    500: '#423e89',
    950: '#000000',
  },
}

SCSS

$custom: #423e89;
$custom-light: #7c73ac;
$custom-dark: #000000;

JSON

{
  "hex": "#423e89",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 137
  },
  "hsl": {
    "h": 243.2,
    "s": 37.688,
    "l": 39.02
  },
  "oklch": {
    "l": 0.40957,
    "c": 0.12118,
    "h": 282
  },
  "luminance": 0.0641
}

Semantic roles & 50–950 ramp

primary

#423E89

secondary

#ABAE74

accent

#CE5AC7

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #423E89

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →